| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a watertight structure between a door body and a sidewall most suitable for a floating body connected flap gate. <P>SOLUTION: A floating body connected flap gate 11 has a door body 12 composed of a plurality of door body blocks 12a to 12c which are divided in the height direction and rotatably connected in a plane in the height direction toward the direction of water flowing from an opening, so that the opening is watertight sealed when water flows from the opening. At the sides of the door bodies facing the sidewall 3, U-shaped rubber water cut-off members 14 which press bent parts to a sidewall 3 are consecutively attached to rotary parts 13a to 13c between the door blocks 12a and 12b, 12b and 12c, and the door block 12c and a roadbed s, respectively, and resin water cut-off plate 15 which press free ends 15a to the sidewall 3 are consecutively attached to linear parts of the door blocks 12a to 12c other than the rotary parts 13a to 13c, respectively. The water-tightness of both of the liner parts of the door body blocks and rotary parts between the door body blocks and between the door body block and the roadbed can be maintained. On this occasion, friction acting on the entire door body can be substantially reduced. <P>COPYRIGHT: (C)2012,JPO&INPIT |
